Pith Number

pith:UQ4SIU4L

pith:2018:UQ4SIU4LSR43BX4RHQNZ5G3EQP

not attested not anchored not stored refs pending

Near Field Speckles The Optical Theorem Revisited

Sabareesh K. P. Velu

arxiv:1801.04135 v1 · 2018-01-12 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ4SIU4LSR43BX4RHQNZ5G3EQP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:26:11.763281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43924538b9479b0df913c1b9e9b6483ecce9325ad6cd86031f63a7846fbc29d

Aliases

arxiv: 1801.04135 · arxiv_version: 1801.04135v1 · doi: 10.48550/arxiv.1801.04135 · pith_short_12: UQ4SIU4LSR43 · pith_short_16: UQ4SIU4LSR43BX4R · pith_short_8: UQ4SIU4L

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UQ4SIU4LSR43BX4RHQNZ5G3EQP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a43924538b9479b0df913c1b9e9b6483ecce9325ad6cd86031f63a7846fbc29d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28c3c7dea74e8a1693052d4169e23684480af177113f51cd772fa0ba10dc05d2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-01-12T11:28:03Z",
    "title_canon_sha256": "c362592280f770228390e8e365ba8b50fce838ee71cdbf4bd9e080d6aaab7b32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04135",
    "kind": "arxiv",
    "version": 1
  }
}